请教关于PHP to Ruby Code问题

修改一下

 require 'uri'
  require 'net/http'
  require 'openssl'
  def makeRequest(url, method, postfields="", isHttps=false)
    httpHeader = {
    "Expect:"=>""
    }

    uri = URI(url)
    response = nil
    http = Net::HTTP.new(uri.host, uri.port)
    if isHttps
    http.use_ssl = true
    http.verify_mode = OpenSSL::SSL::VERIFY_NONE
    end
    http.start()    
    response = http.send_request(method, uri.path, postfields, httpHeader) 

    ret_code = response.code;
    ret_str = response.body;
    return ret_str;
  end